Autonomous System details

AS19977

Mayer Brown LLP  ·  mayerbrown.com

United States

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AS19977 – Mayer Brown LLP

Field Value
Country United States
Website mayerbrown.com
Hosted domains 6
IPv4 addresses 2,048
IPv6 addresses 0
ASN type Business
Registry arin
Allocated 10 years ago on Aug 02, 2016
Updated 10 years ago on Aug 02, 2016

IP Ranges

Netblock Company Num of IPs
143.58.0.0/22 Mayer Brown LLP 1,024
143.58.4.0/22 Mayer Brown LLP 1,024
143.58.0.0/24 Mayer Brown LLP 256
143.58.1.0/24 Mayer Brown LLP 256
143.58.2.0/24 Mayer Brown LLP 256
143.58.3.0/24 Mayer Brown LLP 256
143.58.4.0/24 Mayer Brown LLP 256
143.58.5.0/24 Mayer Brown LLP 256
143.58.6.0/24 Mayer Brown LLP 256
143.58.7.0/24 Mayer Brown LLP 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS19977
                                                OrgID:          AS19977
                                                ASName:         AS19977
                                                ASNumber:       AS19977
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 6 domain names hosted across 6 IP addresses on this ASN.

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IP Address Domain Domains on this IP
143.58.5.109 ██████████ 1
143.58.1.250 ██████████ 1
143.58.1.247 ██████████ 1
143.58.4.81 ██████████ 1
143.58.1.248 ██████████ 1
143.58.1.249 ██████████ 1

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Peers

There are 3 peers for this ASN.

Peers Name
AS1239 Cogent Communications, LLC
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

7 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
143.58.3.19 AS19977 Mayer Brown LLP 1.56ms from Chicago, US
143.58.7.19 AS19977 Mayer Brown LLP 1.02ms from Chicago, US
143.58.2.1 AS19977 Mayer Brown LLP 0.94ms from Chicago, US
143.58.0.1 AS19977 Mayer Brown LLP 0.35ms from Chicago, US
143.58.5.22 AS19977 Mayer Brown LLP 1.00ms from Chicago, US
143.58.1.73 AS19977 Mayer Brown LLP 0.70ms from Chicago, US
143.58.4.1 AS19977 Mayer Brown LLP 0.61ms from Chicago, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
212.85.193.217 AS29340 SP ECHO GHANA LIMITED 0.41ms from Accra, GH
92.70.111.169 AS1136 KPN B.V. 3.71ms from Amsterdam, NL
76.9.123.249 AS36394 Grid4 Communications, Inc 0.98ms from Detroit, US
9.141.56.121 AS8075 Microsoft Corporation 0.30ms from Frankfurt am Main, DE
183.63.119.217 AS4134 CHINANET-BACKBONE 3.09ms from Guangzhou, CN
116.96.161.249 AS7552 Viettel Group 2.63ms from Hanoi, VN
67.55.203.57 AS5056 Aureon Network Services 8.04ms from Kansas City, US
92.107.249.9 AS3303 Swisscom (Switzerland) Ltd 0.66ms from Lausanne, CH
188.86.28.105 AS12430 VODAFONE ESPANA S.A.U. 0.76ms from Madrid, ES
77.37.193.105 AS42610 PJSC Rostelecom 1.18ms from Moscow, RU
108.53.106.105 AS701 Verizon Business 1.80ms from New York City, US
222.230.18.137 AS2519 ARTERIA Networks Corporation 10.17ms from Osaka, JP
95.48.190.89 AS5617 Orange Polska Spolka Akcyjna 2.59ms from Poznan, PL
190.83.154.25 AS27665 Columbus Communications Trinidad Limited. 2.53ms from Princes Town, TT
3.218.5.201 AS14618 Amazon.com, Inc. 0.15ms from Reston, US
179.136.255.137 AS28573 Claro NXT Telecomunicacoes Ltda 15.12ms from Rio de Janeiro, BR
162.144.132.9 AS46606 Unified Layer 2.01ms from Salt Lake City, US
181.160.70.201 AS7418 TELEFÓNICA CHILE S.A. 10.21ms from Santiago, CL
189.238.189.201 AS8151 UNINET 16.87ms from Santiago de Queretaro, MX
103.180.118.41 AS149359 PT Persada Data Multimedia 0.19ms from Surabaya, ID
194.88.245.185 AS41508 ZINET.NET.PL Sp. z.o.o. 1.81ms from Warsaw, PL
94.201.113.9 AS15802 Emirates Integrated Telecommunications Company PJSC 0.52ms from Abu Dhabi, AE
178.91.84.249 AS9198 JSC Kazakhtelecom 9.60ms from Almaty, KZ
38.3.152.249 AS52419 CESOP 5.65ms from Buenos Aires, AR
186.124.122.105 AS7303 Telecom Argentina S.A. 1.68ms from Buenos Aires, AR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f9 143.58.7.16
traceroute to 143.58.7.16 (143.58.7.16): 64 hops max, 52 byte packets
9 [AS16509] 99.83.70.224 1.767 ms
10 *
11 [AS3356] 4.69.203.254 0.866 ms
12 [AS3356] 4.53.98.118 0.721 ms
13 [AS19977] 143.58.4.6 1.094 ms
14 [AS19977] 143.58.6.3 1.23 ms
15 [AS19977] 143.58.7.1 1.316 ms
16 [AS19977] 143.58.7.16 0.874 ms
Measurement taken from IPinfo ProbeNet in Chicago, US
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS19977 at robtex.

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